The correct answer is the control variable. For example, if you want to measure how men and women like cats, you would present the same cats to all the people (that;s the constant variables) and gender is your control variable.
<span />
Answer:
movement
Explanation:
the movement depends on the temp.
Answer:
- Water entered the potato strips because the potato cells contained higher concentration of solutes than its external environment.
- The solutions are hypotonic to the solution in the potato cells.
Explanation:
According to osmosis, water will move from a region where it is high in concentration to that region where it is low in concentration. However, a region with high solute concentration contains a low water concentration and vice versa.
Hence, according to this question, water is said to move into potato strips from solutions of molar concentrations like 0.0M, 0.2M etc. Water moved into the potato strips because potato cells contained higher concentration of solutes than its external environment. This means that the external solutions are HYPERTONIC i.e. low in solute concentration to the solution in the potato strips.
TRUE.THEY DO NOT COTAIN THOSE THINGS.
Answer:
Option C, Bar graph
Explanation:
A bar graph is used to graphically represent a comparative data set where data belonging to different categories is presented.
Here the different categories shall consists of "different environment exposure" given to plant and under all the “exposed environmental condition” the growth of plant is compared. The categories can be kept on both horizontal and vertical axis of the graph.
Thus, a bar graph (either vertical or horizontal) would be the best to present this data set.
